Using Google Earth, this massive structure appears to be 8.5 miles across and some say it could be a UFO parked underwater or an enormous alien base.

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Deep below the Pacific Ocean lies what a Martian researcher has deemed ‘a perfect pyramid’. Using Google Earth, this massive structure appears to be 8.5 miles across and could be a UFO parked underwater that is being used as an enormous alien base, as some are speculating

Marcelo Igazusta, a researcher in Argentina, was the first to lay eyes on the mysterious underwater structure, which was discovered last month.